Networks, Portals, Auctions, and B2B Discuss the evolution and growth of B2B e-commerce, as well as its potential benefits and challenges. Differentiate how procurement and supply chains relate to B2B e-commerce. Identify major trends in supply chain management and collaborative commerce. Describe the different characteristics and types of Net marketplaces. Explain the objectives of private industrial networks, their role in supporting collaborative commerce, and the barriers to their implementation